CCRL Blitz: 50 Free Single-CPU engines

[Kirill Kryukov]

Now 50 free single-CPU engines are rated in my selection (testing done by CCRL members at 40/4 time control):

Code: Select all

 Rank                  Engine                   ELO   +    -   Score  AvOp  Games
    1 Rybka 1.0 Beta 64-bit                    2944  +17  -17  74.4% -177.8  1396
    2 Fruit 2.3 5-men-egbb                     2874  +21  -21  67.1% -122.0   832
    3 Spike 1.2 Turin                          2826   +7   -7  44.6%  +37.2  9446
    4 Naum 2.0 32-bit                          2797   +8   -8  48.9%   +2.6  5829
    5 Alaric 707                               2768  +13  -13  50.2%   -3.4  2290
    6 Glaurung 1.2.1 32-bit                    2758   +8   -8  42.0%  +56.6  5821
    7 Scorpio 2.0 (5-men-egbb)                 2756  +16  -16  50.1%   +0.7  1424
    8 Movei 00.8.438(10 10 10)                 2734  +17  -17  50.4%   -3.3  1178
    9 Pro Deo 1.2                              2721  +12  -12  42.9%  +53.7  2659
   10 Delfi 5.1                                2716  +11  -11  51.9%  -13.3  2862
11-12 Slow Chess Blitz WV2.1                   2712   +9   -9  41.8%  +60.1  5282
11-12 Zappa 1.1 64-bit                         2712  +16  -16  47.2%  +19.5  1440
   13 Frenzee 3.0 64-bit                       2711  +15  -15  49.3%   +4.9  1508
   14 Pharaon 3.5.1                            2701  +11  -11  38.6%  +83.8  3297
   15 WildCat 7                                2699  +10  -11  48.8%   +9.5  3357
   16 List 5.12                                2696  +11  -11  49.2%   +5.9  2959
   17 Colossus 2007c                           2689  +16  -16  47.5%  +17.9  1376
   18 SOS 5.1                                  2683  +12  -12  46.7%  +23.2  2537
   19 Pseudo 0.7c                              2677  +11  -11  50.6%   -7.7  3029
   20 Ruffian 1.0.5                            2676  +13  -13  49.4%   +3.3  2318
   21 Booot 4.13.1                             2671  +14  -14  51.5%  -10.0  1746
   22 Aristarch 4.50                           2668  +12  -12  45.8%  +32.0  2739
   23 Petir 4.39                               2664  +13  -13  46.7%  +25.2  2192
   24 Jonny 2.83 32-bit                        2652  +14  -14  46.2%  +29.5  1980
   25 The Baron 1.8.1                          2650  +16  -16  48.8%   +9.3  1462
   26 BugChess2 1.5.2                          2648  +17  -17  51.4%  -11.3  1248
   27 Crafty 21.5 PS 64-bit                    2645  +15  -15  45.5%  +33.0  1615
   28 Anaconda 2.0.1                           2642  +13  -13  51.7%  -10.8  1998
   29 Smarthink 0.17a                          2640  +15  -15  50.8%   -5.9  1562
   30 Fritz 5.32                               2639  +15  -15  52.9%  -22.3  1656
   31 Ktulu 4.2                                2634  +17  -17  52.4%  -17.4  1277
   32 Thinker 4.7a                             2633  +12  -12  50.3%   -5.8  2440
   33 Ufim 8.02                                2616  +12  -12  51.4%  -13.2  2588
34-35 Little Goliath Evolution 3.12 (TB On)    2615  +17  -17  50.2%   -1.8  1183
34-35 Trace 1.37a                              2615  +15  -15  47.5%  +19.0  1672
   36 AnMon 5.60                               2614  +14  -14  48.8%  +10.0  1924
   37 Yace 0.99.87                             2612  +17  -17  50.3%   -2.7  1152
   38 E.T. Chess 18.11.05                      2609  +12  -12  54.7%  -40.4  2378
   39 Hamsters 0.5                             2591  +18  -18  49.5%   +2.1  1108
   40 Green Light Chess 3.00                   2575  +19  -19  46.6%  +22.0   959
   41 Tao 5.6                                  2567  +19  -19  45.6%  +30.4   952
   42 Abrok 5.0                                2562  +18  -18  48.5%   +4.7  1052
   43 Amyan 1.597                              2561  +14  -14  46.4%  +25.3  2006
   44 SpiderChess 070603                       2560  +15  -15  45.3%  +31.8  1593
   45 Arasan 10.0 64-bit                       2550  +20  -20  43.8%  +42.2   861
   46 Snitch 1.6.2 32-bit                      2521  +20  -20  43.5%  +46.7   874
   47 Kiwi 0.6d                                2515  +18  -18  45.9%  +28.5  1131
   48 Nejmet 3.07                              2514  +16  -16  44.0%  +41.3  1381
   49 Sjeng 12.13                              2482  +22  -23  35.3% +104.3   736
   50 Comet B68                                2481  +20  -20  37.6%  +88.9   949

Rating list
Performance table
Score table
LOS (Likelihood of superiority) table
Ponder hit table

Latest additions: Scorpio 2.0, SpiderChess 070603, Snitch 1.6.2 32-bit and Nejmet 3.07.

I know that some of the engines here are not the latest versions. The latest versions will be tested and added when our time permits.

Best,
Kirill

[Tony Thomas]

If you dont allow 2 engines by the three author, then you can stop playing around with Kiwi and let another one get in to the top 50. Just trying to help an underdog..

[Kirill Kryukov]

If you dont allow 2 engines by the three author, then you can stop playing around with Kiwi and let another one get in to the top 50. Just trying to help an underdog..

No, I am OK with two engines by the same author, as long as they are two different engines.

I am not OK with two identical engines, even from different authors, which is why I don't list Toga and Strelka.

I think there are still engines which will be able to push Comet and Sjeng out of top 50 when they are tested.

[Tony Thomas]

I agree with you about not listing Strelka and Toga. However, if they are indeed stronger than the original engine (with a significant margin, say 50 points), you should consider listing them. Yea, I agree with you that there are engines that can push past Sjeng and comet. Sloppy, Knightdreamer, Twisted Logic..etc comes to mind.

[Vempele]

If you dont allow 2 engines by the three author, then you can stop playing around with Kiwi and let another one get in to the top 50. Just trying to help an underdog..

No, I am OK with two engines by the same author, as long as they are two different engines.

I am not OK with two identical engines, even from different authors, which is why I don't list Toga and Strelka.

I think there are still engines which will be able to push Comet and Sjeng out of top 50 when they are tested.

Like Glaurung 2. It's not *at all* the same engine as 1.2.1.

[Thomas Gaksch]

Toga identical with Fruit 2.1????? Are 100 Elo improvement "identical". I think you should use another word. They are not identical!!!

Thomas

[Tony Thomas]

Identical, similar.. What difference does it make? The only thing is that it wont make it to Kirill's best list, it is still on the rating list. Is that a big issue?

[Tony Thomas]

If you dont allow 2 engines by the three author, then you can stop playing around with Kiwi and let another one get in to the top 50. Just trying to help an underdog..

No, I am OK with two engines by the same author, as long as they are two different engines.

I am not OK with two identical engines, even from different authors, which is why I don't list Toga and Strelka.

I think there are still engines which will be able to push Comet and Sjeng out of top 50 when they are tested.

Like Glaurung 2. It's not *at all* the same engine as 1.2.1.

If that's the case, Goathmog should get a place too, may be also Viper.

[Thomas Gaksch]

Of,course, its not ab big issue. But "Identical" sounds for me, that it is just a simple copy of Fruit without changes. And that is not correct. Thats all what i wanted to say. Nothing more.

Thomas

[Kirill Kryukov]

Of,course, its not ab big issue. But "Identical" sounds for me, that it is just a simple copy of Fruit without changes. And that is not correct. Thats all what i wanted to say. Nothing more.

Thomas

Hi Thomas. May be "identical" is too strong. I should say "similar" instead. Definition of similar is subjective in this case. Early Togas were quite similar to Fruit despite all changes. I can't say anything about recent Togas, I hope to test one some day.